package com.smday.fireworks.nosql.redis;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;

import java.util.*;
import java.util.concurrent.TimeUnit;

/**
 * spring redis 工具类
 *
 * @author ruoyi
 **/
@SuppressWarnings(value = {"unchecked", "rawtypes"})
@Component
public class RedisCache {
  @Autowired
  public RedisTemplate redisTemplate;

  /**
   * 缓存基本的对象，Integer、String、实体类等
   *
   * @param key   缓存的键值
   * @param value 缓存的值
   * @return 缓存的对象
   */
  public <T> ValueOperations<String, T> setCacheObject(String key, T value) {
    ValueOperations<String, T> operation = redisTemplate.opsForValue();
    operation.set(key, value);
    return operation;
  }

  /**
   * 缓存基本的对象，Integer、String、实体类等
   *
   * @param key      缓存的键值
   * @param value    缓存的值
   * @param timeout  时间
   * @param timeUnit 时间颗粒度
   * @return 缓存的对象
   */
  public <T> ValueOperations<String, T> setCacheObject(String key, T value, Integer timeout, TimeUnit timeUnit) {
    ValueOperations<String, T> operation = redisTemplate.opsForValue();
    operation.set(key, value, timeout, timeUnit);
    return operation;
  }

  /**
   * 获得缓存的基本对象。
   *
   * @param key 缓存键值
   * @return 缓存键值对应的数据
   */
  public <T> T getCacheObject(String key) {
    ValueOperations<String, T> operation = redisTemplate.opsForValue();
    return operation.get(key);
  }

  /**
   * 删除单个对象
   *
   * @param key
   */
  public void deleteObject(String key) {
    redisTemplate.delete(key);
  }

  /**
   * 删除集合对象
   *
   * @param collection
   */
  public void deleteObject(Collection collection) {
    redisTemplate.delete(collection);
  }

  /**
   * 缓存List数据
   *
   * @param key      缓存的键值
   * @param dataList 待缓存的List数据
   * @return 缓存的对象
   */
  public <T> ListOperations<String, T> setCacheList(String key, List<T> dataList) {
    ListOperations listOperation = redisTemplate.opsForList();
    if (null != dataList) {
      int size = dataList.size();
      for (int i = 0; i < size; i++) {
        listOperation.leftPush(key, dataList.get(i));
      }
    }
    return listOperation;
  }

  /**
   * 获得缓存的list对象
   *
   * @param key 缓存的键值
   * @return 缓存键值对应的数据
   */
  public <T> List<T> getCacheList(String key) {
    List<T> dataList = new ArrayList<T>();
    ListOperations<String, T> listOperation = redisTemplate.opsForList();
    Long size = listOperation.size(key);

    for (int i = 0; i < size; i++) {
      dataList.add(listOperation.index(key, i));
    }
    return dataList;
  }

  /**
   * 缓存Set
   *
   * @param key     缓存键值
   * @param dataSet 缓存的数据
   * @return 缓存数据的对象
   */
  public <T> BoundSetOperations<String, T> setCacheSet(String key, Set<T> dataSet) {
    BoundSetOperations<String, T> setOperation = redisTemplate.boundSetOps(key);
    Iterator<T> it = dataSet.iterator();
    while (it.hasNext()) {
      setOperation.add(it.next());
    }
    return setOperation;
  }

  /**
   * 获得缓存的set
   *
   * @param key
   * @return
   */
  public <T> Set<T> getCacheSet(String key) {
    Set<T> dataSet = new HashSet<T>();
    BoundSetOperations<String, T> operation = redisTemplate.boundSetOps(key);
    dataSet = operation.members();
    return dataSet;
  }

  /**
   * 缓存Map
   *
   * @param key
   * @param dataMap
   * @return
   */
  public <T> HashOperations<String, String, T> setCacheMap(String key, Map<String, T> dataMap) {
    HashOperations hashOperations = redisTemplate.opsForHash();
    if (null != dataMap) {
      for (Map.Entry<String, T> entry : dataMap.entrySet()) {
        hashOperations.put(key, entry.getKey(), entry.getValue());
      }
    }
    return hashOperations;
  }

  /**
   * 获得缓存的Map
   *
   * @param key
   * @return
   */
  public <T> Map<String, T> getCacheMap(String key) {
    Map<String, T> map = redisTemplate.opsForHash().entries(key);
    return map;
  }

  /**
   * 获得缓存的基本对象列表
   *
   * @param pattern 字符串前缀
   * @return 对象列表
   */
  public Collection<String> keys(String pattern) {
    return redisTemplate.keys(pattern);
  }
}
